Home
Random
Log in
Settings
Donations
About Wiktionary
Disclaimers
Search
hydrotachymeter
Language
Watch
Edit
English
edit
Etymology
edit
hydro-
+
tachymeter
Noun
edit
hydrotachymeter
(
plural
hydrotachymeters
)
(
rare
)
An instrument used to measure the
velocity
of
water
(in a river etc).